Concrete form



J y 1929- J. N. HELTZEL CONCRETE FORM 2 Sheets-Sheet 1 Filed Jan. 12,

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July 23, 1929., J. N. HELTZEL CONCRETE FORM Filed Jan. 12

, 1924 2 Sheets-Sheet 2 5 FIG- FIG.E 5,

Patented July 23, 192.9.

pairs srrss anal JOHN 1v. HELTZEL, or wrinnnmonro.

'ooncanrn roan.

Application filed January 12, 1924. Serial No. 885,811.

The present invention relates to concrete forms, such as are employed for defining the edges or sides of concrete roads, sidewalks, curbs, and the like, and the invention aims to provide novel and improved means for fastening or securing together the adjacent ends of the rails and for bracing the rails and anchoring them to the ground;

Another object of the invention is the provision of such a device for fastening the rail ends in abutment which is adjustable to variations in the rails and in order thatthe device can be tightly secured in place.

A further object is to provide such a device capable of being expanded or extender between the tread and base of a rail, "for adjusting the device to the rail, and to enable the device to brace or strengthen and to slidably engage the rail.

A still further object is the provision of such a device having a stake socket which is adjustable to dii'l'erent positions for accommodating the stake either in vertical or inclined positions and which is also movable along the rail. IIeretotordstalre sockets have been riveted or otherwise rigidly secured to the rails, and when the'stakes are struck sidewise with a sledge to loosen them, such sockets have frequently been sheared, broken or torn oil, rendering the "forms useless. l/Vi'th the present improvements, the possibility of such shearing or tearing oil of the stake sockets is eliminated, by the pivotal and sliding mounting of the stake sockets, permitting the parts to yield when the stakes are struck sidewise tor loosening them.

Another object is the provision of a'stake socket having assembled therewith means for binding or clamping the stake and socket together in a simple and effective manner. It is also an object of the invention to provide such a device for fastening together the rail ends, which will enable either rail end to be anchored to the ground independently of the other, and which will, conversely, enable either rail to be detached and removed without interfering with'the other rail.

lVith the foregoing and other objects in view, which will. be apparent as the description proceeds, the invention resides in the construction and arrangement of parts, as hereinafter described and claimed, it being understood thatchanges canbe made within Fig. 4.

the scope of what is claimed, without departing iromthe spirit of the nvention. The invention is illustrated in the accompanying drawings, wherein-- I Figure l is a perspective view showing the device serving, as a rail oint and double stake socket.

section on the line 55 tion on the line 66 of The rails, which define the edges or sides of the road, sidewalk, curb, or the like, are laid end to end, according to well known practice, and said rails are formed "from sheet metal, having the vertical webs 10, the lower outwardly extending base flanges or bases 11 provided with the supplementary or secondary upwardly extending flanges 12, and the upper outwardly extending. tread flanges 13 provided with the dependingsupplementary'or secondary flanges 14. rails driler 1n cross-section,however, for dif- These ferent uses and conditions, and the present improvements can be modified accordingly, if necessary! A pair of clamping plates 19 overlap the. plate 15 at the outside ofthe plate, and rivets or other pivot elements extend through the plates 15 and 19 for pivotally connecting the plates, whereby theplates 19' can be swungin adirection longitudinally of the rails, said plates 19 being inclined similarly torthe platelo. The plates 19 are thus pivotal'l'y connected near their upper ends with the joint plate 15, and the lower ends of the plates 19' are curved, as at 21, substantially about the pivot elements 20 as centers, and said ends 21 are adapted to seat in the angle between the bases 11 and flanges 12 of the rails. The plate 15 has slots 22 througlrwhich the pivot elements 20 extend, and said slots 22 are inclined slightly relatively to the'longitudinal line of the rails, whereby a wedgin action isobtained between the plates 10 and 19 by the relative longitudinalmovements thereof to clamp the plate 15 up against the treads 13 and to clamp the plates 15 down against the bases 11 of the rails. As shown, the slots 22 diverge downwardly from their adjacent ends, and the upper edges of the slots 22 are preferably notched or toothed, as at 23, for the seating engagement of the pivot elements to prevent said elements from sliding acci dentally in said slots when the parts are driven tightly into place.

The stake sockets are carried by the clamping plates 19, so as to be adjustable, it being noted that the plates 19 can be swung to different angular positions about the pivot elements 20, and .are also capable of longitudinal shifting movement along the rails. The stake sockets comprise the yokes 2projecting outwardly beyond the flanges 12 and having the lower and upper inflwardly extending arms and 26, respec tively. The lower arms 25 are welded to or otherwise secured to the plates 19, and the upper arms 26 overlap the plates 19 and are held by the pivot elements 20 or may be otherwise secured to the upper end portions of the plates 19. The arms 25 and 26 have stakeopenings 27 adjacent to the yokes 21- through which the stakes 28 are inserted and driven into the ground, said stakes extending downwardly across the outer sides of the flanges 12.

In carrying out the invention there is provided a o nt plate or member 15, which 1s inclined inwardly as shown, and which is of a length to extend across the division between the abutting rail ends for joining the rails together. The plate15 is formed at its upper edge with a portion to bear upwardly against the tread flanges or treads 13 of the rails, the upper edge portion of said plate being bent inwardly and downwardly for that purpose, to form the vertical portion 16 to overlap the depending flanges 14 behind said flanges, the horizontal tread portion 17 to bear upwardly against the treads 13, and

the depending portion or flange 18. to bear against the webs 10. The portion or flange 18 is preferably bent toward the plate 15, so as to allow the plate 15 and rails to be tilted transversely of the rails, toward and away from one another slightly in fitting the parts together. When the upper bent back edge portion of the plate 15 is fitted under the treads 13 of the rails behind the flanges 14, the lower edge of the plate 15 is spaced above the bases 11 of the rails. Plate 15 is slidably engaged under the tread of the rail and can be moved or shifted to any point along the rail as desired, and expanded in position to support the rail atany desired location.

The stake clamping or binding means comprise slides 29 mounted on the upper arms 26 of the yokes, at the inner sides of the openings 27, and said slides 29 have oblique slots 80 receiving rivets or bolts 31 which 29 on said arms, and to provide for a wedging action of the slides 29 between the rivets 31 and stakes 28. The ends of the slides 29 are bent upwardly to provide the broad end portions 32'for receiving the blows of a hammer or other driving implement.

The device and rails are readily assembled. Thus, when one rail is laid in place on the ground or bed, the plate 15 can be inserted lengthwise into the end portion of the rail, or said plate can be inserted laterally between the flanges 12 and 1d and then shifted upwardly into place against the rail tread, it being noted that when the plates 19 are swung upwardly, the plate 15 can be moved either longitudinally or transversely into and out of engagement with the rail. Substantially one half of the plate 15 overlaps the rail, and the corresponding plate 19 is then swung downwardly into engagement with the base 11 and flange 12 of the rail, and by driving the plate 19 longitudinally of the rail, the'pivot element 20 is shifted longitudinally in the slot 22, thereby separating the plates 15 and 19 and expanding the device into the rail between the tread and base of the rail. This will cause the plate 15 to be clamped tightly up against the tread of the rail, while the plate '19 is clamped down tight against the base of the rail. This will not only securely fasten the device in the end of the rail, but will also brace or strengthen the rail, so as to support the tread of the rail against the weight of a finishing machine run on the treads of the rails. In order to prevent the rail from being sprung, by the pressure in opposite directions against the tread and base, it is preferable to strike strengthening ribs 33 I inwardly from the webs 10 and bases 11 at the angle between them, near the ends of the rails, where the strain occurs when the plates 19 are tight- 'ened.

lVhen the device is secured to the end portion of one rail, the stake can then be driven down through the corresponding stake socket, to anchor the rail to the ground, and the corresponding slide 29 is then driven lengthwise so to wedgebetween the member 31 and stake, for clamping or-binding the stake and socket together tightly, to prevent the parts from loosening. It will be noted that the slides 29 can not only slide lengthwise but can also turn around the rivets or members 81 so that said slides will adjust themselves to the stakes.

The other rail can then be brought into place and either slid longitudinally over the plate 15 or shifted outwardly so as to engage over said plate. The second plate 19 is then swung downwardly to engage between the base 11 and flange 12 of the second rail, and said plate 19 is struck by engage through the arms 26 to hold the slides a hammer or other implement to shiftsame away from the other plate 19, whereby to expand the device into the second rail the same as with the first rail. The second stake 28 is then driven down through the socket of the second plate 19 and is fastened by driving the corresponding slide 29 in the proper direction.

The stake sockets may be vertical, or may be inclined by tilting the plates 19. Thus, Fig. 1 shows one stake socket vertical and the other inclined, and it may be desirable to incline the stakes, such as to avoid a rock or other obstruction in the ground, or the stakes may be at an angle with the rails on grades.

Either rail can be loosened and removed without disturbing the other. Thus, to remove either rail, the corresponding slide 29 is driven in the proper direction to loosen the corresponding stake, and when the stake is withdrawn, the corresponding plate 19 can be dri en toward the other plate and swung loose, which permits the rail to be removed. The rail can either be withdrawn from the plate 15 by a longitudinal movement, or can be shifted upwardly and inwardly out of engagement from said plate 15, without having to slide the rail longitudinally, although the longitudinal removal of the rail may be necessary because the concrete will prevent the rail from shifting inwardly in most cases.

The device can therefore be used with one rail tor-bracing or strengthening the rail and anchoring the rail tot-he ground, and the two plates 19 and stake sockets enable the device to be used for securing the rails together in erfect alinement, preventing the rail ends from sagging or being displaced out of registration.

1-laVing thus described what is claimed as new is 1. Adevice of the character described comprisin slidably connected members to engage the base and tread of a rail and having a wedging action when slid relatively to one another to clamp them against said base and tread, and a stake socket carried by one of said members.

2. A device of the character described comprising members pivotally and slidably connected so as to have relative sliding movement longitudinally of a rail with a wedging expansive action and for relative swinging movement with anuexpansive aetion between the base and tread of the rail.

3. A device of the character described comprising members pivotally and slidably connected so as to have relative sliding movement longitudinally of a rail with a wedging expansive action and for relative swinging movement with an expansive action between the base and tread of the rail, and a stake socket carried by one of said members.

the invention,

4:. A device of the character described comprising members to engagethe base and tread of a rail, one member having an inclined slot and'the other member a pivot element working in said slot for the relative sliding movement of said members longiing notches along one edge of said slot for the engagement of said element to prevent accidental slipping between" said members.

6. A device of the character described comprising members to engage the base and tread of a rail, one member havingan in-. clined slot and the other member a pivot element working in said slot for the relative sliding movement of said members longitudinally or a rail with a wedging expansive action and for relative swinging movement with an expansive action betweenthe base and tread of the rail, and a. stake socket carried by one of said members.-

7. A device oi the character described comprising a plate formed with a longitudinally elongated portion to engage under the tread of a rail, a second plateo-verlapping and pivotally. connected with the first named plate to engage the base of the rail with a swinging motion, and a stake socket carried by said second plate.

8. A device of the character described comprising a plate formed with a longitudinally elongated portion to fit under the tread of a rail, and a second plate overlapping said plate and adapted to bear on the base of the rail, said plates having means connecting them for relative sliding movement longitudinally of the rail. with a wedging action to clamp the plates against the tread and base, respectively, and a' stake socket carried by the second plate. I I

9. A device of the character described comprising a plate formed with a longitudinally elongated portion to fit under the tread of a rail, and a second plate overlapping said. plate and adapted to bearon the base of the rail, said plates havingmeans connecting them for relativeslidii'lg movement longitudinally of the rail with a wedging expansive action and for relative swinging movement with an expansive action.

10. A device of the character described comprising a plate formed. withfa longitudinally elongatedportion to fit under the tread of a rail, a second plate overlapping said plate and adapted to bear onthe'base oi the action and for relativ swinging movement rail, said plates having means connecting them for relative sliding movement longitudinally of the rail with a wedging expansive action and for relative swinging movement with an expansive action, and a stake socket carried by said second plate. 11. A device of the character described comprising a plate to fit under the tread of a rail, and a second plate overlapping said plate and adapted to bear on the base of the rail, the firstnamed plate having an inclined slot and the second plate having a pivot element working in said slot for the relative sliding movement of the plates longitudinally of the rail with a wedging expansive withan expansive action.

12. A device of the character describet comprising a plate to fit under the tread o' a rail, a second plate overlapping said plate and adapted to bear on the base of the rail, the firstnamed plate having an inclined slot and the second plate having a pivot element working in said slot for the relative sliding movement of the plates longitudinally of the rail with a wedging expansive action and for relative swinging movement with an expansive action, and a stake socket carried by said second plate.

18. A device of the character described comprising means arranged to be clamped to a rail and having a stake socket adjustable to different inclined positions.

14:. A device of the character described comprising means adapted to be clamped to a rail and having a stake socket pivoted so as to be tilted to different angular positions.

15. A device of the character described comprising clamping means for engaging a rail and including a stake socket mounted for swinging and ill-ding adjustments.

16. A device of the character described comprising pivotally connected'upper and lower members, the upper member having a portionto engage under the tread of a rail,

the lower member having its lower end curved to engage the rail. base, and a stake socket carried by said lower member. I

17. A device of the character described comprising a plate having its upper edge portion formed to fit under the tread of a. rail, and a plate overlapping said plate and having its lower end'curved to engage the rail base with a swinging motion, the firstnamed plate having an inclined slot and the secondnamed plate having a pivot element working in said slot.

18. A deviceot the character described comprising a plate having its upper edge portion formed to fit under the tread ot a rail, a plate overlapping. said plate and having its lower end curved to engage the rail base with a swinging motion, the firstnamed plate having an inclined slot and the secondnamed plate having a pivotal element workcomprising a stake socket, a slide on the socket having an oblique slot, and a pivot element carried by the socket and extending in said slot to provide a wedging action of the slide between said element and stake when the slide is moved in one direction.

21. A device of the character described comprising a oint member to fit under the treads of the adjacent end portions oftwo rails, clamping members to bear on the rail bases and. connected independently with said joint member for clamping said first and second named members between the treads and bases of the rails,-and stake sockets carried by the secondnamed members.

22. A device of the character described comprising a joint member to engage the adjacent end portions of two'rails, a pair of clamping members to engage the rails, said clamping members being assembled with the joint member independently of one another and being arranged to be moved relatively to the joint member and rails 'for clamping said members to the rails, and stake sockets carried by the secondnamed members.

28. A device of the character described comprising a joint member to engage under the treads of the adjacent ends of two rails, independent clampin members to bear on the rail bases, the hrstnamed and second-' named members having means connecting them for the wedging action to expand the.

tirstnamed and secondnamed members between the treads and bases,

24-. A device of the character described comprising a joint member to'engage under the treads of the adjacent ends of two rails,

independent clampingmembers to bear on the rail bases, the firstnamed and secondnamed members having means connecting them for the wedging action to expand the firstnamed and se'condnamed members between the treads and bases, and stake sockets carried by the secondnamcd members.

25. A device of the character described comprising a stake socket, and means for pivotally mounting said socket between the tread and base of a concrete form rail.

26. A device of the character described comprising a member to be disposed for longitudinal sliding movement between the tread and base of a concrete form rail, and a. stake socket assembled with saidmember for. sliding movement relatively to. said member longitudinally of the rail.

27. A device of the character described comprising member to be disposed for longitudinal sliding movement between the tread and base of a concrete form rail, and a. stake socket connected to said member for movement relatively to said member and the rail to permit said socket to yield when a stake therein is being loosened.

28. The combination with concrete form rails disposed end to end and each having a tread and a base, of a device disposed between and contacting slidably with the treads and bases of said rails to join the rails, and slidable longitudinally of the rails, and having outstanding stake sockets.

In testimony whereof I hereunto afliX my signature. 

